/*
 * Copyright 2018 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef SkImage_GaneshBase_DEFINED
#define SkImage_GaneshBase_DEFINED

#include "include/core/SkRefCnt.h"
#include "include/core/SkSamplingOptions.h"
#include "include/gpu/GrRecordingContext.h"
#include "include/private/chromium/SkImageChromium.h"
#include "include/private/gpu/ganesh/GrImageContext.h"
#include "src/image/SkImage_Base.h"

#include <memory>
#include <tuple>
#include <cstddef>
#include <cstdint>

class GrBackendFormat;
class GrBackendTexture;
class GrCaps;
class GrContextThreadSafeProxy;
class GrDirectContext;
class GrFragmentProcessor;
class GrSurfaceProxyView;
class GrTextureProxy;
class SkBitmap;
class SkColorSpace;
class SkImage;
class SkMatrix;
enum GrSurfaceOrigin : int;
enum SkAlphaType : int;
enum SkColorType : int;
enum class GrColorType;
enum class GrImageTexGenPolicy : int;
enum class GrSemaphoresSubmitted : bool;
enum class SkTileMode;
struct GrFlushInfo;
struct SkIRect;
struct SkISize;
struct SkImageInfo;
struct SkRect;
namespace skgpu {
enum class Mipmapped : bool;
class RefCntedCallback;
} // namespace skgpu

namespace skgpu {
namespace graphite {
class Recorder;
}
}

class SkImage_GaneshBase : public SkImage_Base {
public:
    // From SkImage.h
    bool isValid(GrRecordingContext *) const final;
    sk_sp<SkImage> makeColorTypeAndColorSpace(GrDirectContext *dContext, SkColorType targetColorType,
        sk_sp<SkColorSpace> targetCS) const final;
    sk_sp<SkImage> makeSubset(GrDirectContext *direct, const SkIRect &subset) const final;

    // From SkImage_Base.h
    GrImageContext *context() const final
    {
        return fContext.get();
    }
    GrDirectContext *directContext() const final
    {
        return GrAsDirectContext(this->context());
    }

    bool getROPixels(GrDirectContext *, SkBitmap *, CachingHint) const final;

    sk_sp<SkImage> onMakeSubset(GrDirectContext *, const SkIRect &subset) const final;

    bool onReadPixels(GrDirectContext *dContext, const SkImageInfo &dstInfo, void *dstPixels, size_t dstRB, int srcX,
        int srcY, CachingHint) const override;

    // From SkImage_GaneshBase.h
    virtual GrSemaphoresSubmitted flush(GrDirectContext *, const GrFlushInfo &) const = 0;

    static bool ValidateBackendTexture(const GrCaps *, const GrBackendTexture &tex, GrColorType grCT, SkColorType ct,
        SkAlphaType at, sk_sp<SkColorSpace> cs);
    static bool ValidateCompressedBackendTexture(const GrCaps *, const GrBackendTexture &tex, SkAlphaType);

    // Helper for making a lazy proxy for a promise image.
    // PromiseImageTextureFulfillProc must not be null.
    static sk_sp<GrTextureProxy> MakePromiseImageLazyProxy(GrContextThreadSafeProxy *, SkISize dimensions,
        const GrBackendFormat &, skgpu::Mipmapped, SkImages::PromiseImageTextureFulfillProc,
        sk_sp<skgpu::RefCntedCallback> releaseHelper);

    virtual std::tuple<GrSurfaceProxyView, GrColorType> asView(GrRecordingContext *, skgpu::Mipmapped,
        GrImageTexGenPolicy) const = 0;

    virtual std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(GrRecordingContext *, SkSamplingOptions,
        const SkTileMode[2], const SkMatrix &, const SkRect *, const SkRect *) const = 0;

    virtual GrSurfaceOrigin origin() const = 0;

protected:
    SkImage_GaneshBase(sk_sp<GrImageContext>, SkImageInfo, uint32_t uniqueID);

    sk_sp<SkImage> onMakeSubset(skgpu::graphite::Recorder *, const SkIRect &subset, RequiredProperties) const final;
    using SkImage_Base::onMakeColorTypeAndColorSpace;
    sk_sp<SkImage> makeColorTypeAndColorSpace(skgpu::graphite::Recorder *, SkColorType, sk_sp<SkColorSpace>,
        RequiredProperties) const final;

    sk_sp<GrImageContext> fContext;
};

#endif
